anychart.onDocumentReady(function () {
var chart = anychart.line([
chart.yScale().minimum(0);
var controller = chart.annotations();
var annotation = controller.triangle();
annotation.valueAnchor(17);
annotation.secondXAnchor(2);
annotation.secondValueAnchor(19);
annotation.thirdXAnchor(2.2);
annotation.thirdValueAnchor(17);
annotation.fill(['#263238', '#FFFFFF'], 45, true, 0.5);
chart.title('Set fill as a linear gradient');
chart.container('container');